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Acclimation effects on routine oxygen consumption of the Antarctic fish Pogonophryne scotti (Artedidraconidae)

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Summary

Routine oyxgen consumption (\(\dot VO_2\)) of the artedidraconid fish Pogonophryne scotti at-1°C is determined using a flow-through respirometer. The metabolic rate during an 8 to 12 h acclimation period is found to exceed the actual routine metabolic level by a factor of 2 to 4. \(\dot VO_2\) of 7 P. scotti varies between 2.5 mg/h and 4.4 mg/h for fish weighing 58 g to 210 g. The exponent of the oxygen consumption/weight equation is 0.46. From this relation, routine \(\dot VO_2\) of a 100 g fish is calculated as 2.9 mg/h. The significance of acclimation times and the use of standardized methods for future respiration measurements of Antarctic fish are discussed.

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Saint-Paul, U., Hubold, G. & Ekau, W. Acclimation effects on routine oxygen consumption of the Antarctic fish Pogonophryne scotti (Artedidraconidae). Polar Biol 9, 125–128 (1988). https://doi.org/10.1007/BF00442040

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